The Petzl Pirana Descender provides excellent rope control and a smooth lower when you're rapping long lines with heavy loads. Rappelling a 150ft single line with a heavy pack is no longer a guaranteed white-knuckle horror show; you won't even notice the weight when you use the Petzl Pirana Descender. Its two breaking spurs allow you to increase or decrease friction on the go and are used to secure the device, so you have both hands free to build the next anchor.
Arches National Park is known for its' remarkable natural red sandstone arches. With over 2,000 catalogued arches that range in size from a three-foot opening, to Landscape Arch which measures 306 feet from base to base, the park offers the largest concentration of natural arches in the world.
Most commonly found in the tundra of Rocky Mountain National Park, the pika is a close relative of the rabbits and hares, with two upper incisors on each side of the jaw, one behind the other. Being rock-gray in color, pikas are seldom seen until their shrill, metallic call reveals their presence.